This model is discontinued
AirTAC has phased out the ACP series. You can still order this code here: we ship the current replacement ACED20X40B, the same code under the new prefix. The ACE replacement is a current-production ISO 21287 compact cylinder in the same bore, stroke and force class, with a matching short body and the same mounting-accessory family, so it fits the same envelope. Confirm mounting-interface dimensions against the ACE datasheet before ordering.
Airtac ACPD Double Rod Compact Cylinder ACPD20X40B
The AirTAC ACPD Double Rod Compact Cylinder ACPD20X40B is a double acting, double rod DIN-standard tight/compact air cylinder with a Ø20mm bore and 40mm stroke, M5×0.8 air ports and a hard-anodized aluminium body. This model is discontinued — the current-production replacement is the ACED20X40B (ISO 21287 ACE), in the same bore, stroke and force class.
- BoreØ20 mm
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM6×1.0
- StatusDiscontinued → ACED20X40B
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac ACPD Double Rod Compact Cylinder ACPD20X40B
A double acting compact cylinder with a rod through both covers, the ACPD20X40B delivers 117.8 N in each direction at 0.5 MPa (164.9 N at 0.7 MPa) because both strokes work on the rod-side area. The 20 mm bore carries a 10 mm rod with a male thread (B code) on each end, and the fixed TPU bumper decelerates the piston at both ends. Air supply is 0.15-1.0 MPa (22-145 psi), speed range 30-500 mm/s, and the M5x0.8 port follows the bore.
The hard-anodized aluminium body with an S45C hard-chrome rod saves roughly 50% of the mounting length of an ISO 15552 profile cylinder, which is why it fits tight fixtures and sliding guards. Because the piston drifts when air is lost, use a rod lock or pilot check valve if a load must stay put. Note this model is discontinued: the current-production replacement is the ACED20X40, so confirm ISO 21287 mounting dimensions before swapping.
Airtac ACPD Double Rod Compact Cylinder ACPD20X40B Technical Specifications
| Model | Airtac ACPD Double Rod Compact Cylinder ACPD20X40B |
|---|---|
| Series | ACPD DIN compact cylinder (discontinued) |
| Replacement | ACED20X40B |
| Bore size | Ø20 mm |
| Stroke | 40 mm |
| Acting type | Double acting, double rod |
| Port size | M5×0.8 |
| Rod thread | M6×1.0 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed bumper (both ends) |
| Max standard stroke | Up to 100 mm |
Specifications follow the official AirTAC ACP datasheet (now discontinued). The ACED20X40B (ISO 21287) carries the same bore/stroke/force class; confirm mounting-interface dimensions against the ACE datasheet before installation. Rod type: female thread (blank) or male thread (B). Thread options: PT (blank) / G.
Theoretical Output Force (Ø20mm)
| Pressure | Force (both ways) |
|---|---|
| 0.5 MPa | 118 N |
| 0.7 MPa | 165 N |
| Max (@1.0 MPa) | 24 kgf |
Double-rod: a rod exits both covers, so output force is equal in both directions (rod-side area used).
Model Code: Airtac ACPD Double Rod Compact Cylinder ACPD20X40B
| ACPD | DIN compact cylinder (double-rod, discontinued). |
|---|---|
| 20 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| S | Optional built-in magnet for sensor position sensing (omit for no magnet). |
| B | Rod type: B = male thread; blank = female thread. |
Replacement mapping (swap P for E): ACP→ACE, ASP→ASE, ATP→ATE, ACPD→ACED, ACPJ→ACEJ. ACP-family: ACP (double acting), ASP / ATP (single acting push / pull), ACPD (double rod), ACPJ (double rod, adjustable stroke).
Where the Airtac ACPD Double Rod Compact Cylinder ACPD20X40B Is Used
Reciprocating test slide
The through-rod drives a slide both ways with identical 117.8 N force, while the rear rod carries a sensor flag on a small lab fixture.
Clamp-and-eject station
On an electronics assembly jig, the 40 mm stroke clamps a PCB carrier with about 70 N of usable force and ejects it on the return stroke.
Indexing table drive
A 90-degree rotary indexer on a packaging line uses the symmetric double-rod mount to resist rotation and side load at 30-500 mm/s.
Replacing the Airtac ACPD Double Rod Compact Cylinder ACPD20X40B with the ACED20X40B
For a 40 mm stroke needing equal force both ways, this 20 mm bore gives 117.8 N at 0.5 MPa. If your load needs more, step up to the 25 mm bore at 206.2 N; if less force works, the 16 mm bore offers 75.4 N. The male rod thread (B) suits rod attachments, while FA/FB flange or LB foot mounting bolts to the ISO 21287 face. Add the -S code if you later want CMSE or DMSE switches - without it there is no magnet. This unit is discontinued, so spec the ACED20X40 as the direct successor.
Replacement checklist
- ✓ Current-production ACE → ACED20X40B
- ✓ Same bore / stroke / force class
- ✓ Confirm ISO 21287 mounting dimensions
- ✓ Port/thread type (PT / G)
- ✓ Add -S for magnet if you need sensors
Airtac ACPD Double Rod Compact Cylinder ACPD20X40B FAQ
Output is equal in both directions because a rod exits each cover and both strokes use the rod-side area: 117.8 N at 0.5 MPa and 164.9 N at 0.7 MPa, with a maximum of 24.0 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa (22-145 psi) and speed is 30-500 mm/s.
The hard-anodized aluminium body is an ISO 21287-class short build, saving about 50% of the mounting length of an ISO 15552 profile cylinder, with a fixed TPU bumper at each end. The ACPD20X40B is discontinued; the current direct is the ACED20X40 - confirm ISO 21287 mounting dimensions before ordering.
Related AirTAC ACE Cylinders
Request a Quote for the ACED20X40B
Send us the quantity and destination. We confirm price, stock and lead time on the ACED20X40B replacement — usually within 7-8 hours.